add license + dune-project

src/mte.ml

@@ -1,3 +1,19 @@
+(*  MTE - the MirageOS Taler Exchange
+    Copyright (C) 2025 Olivier Pierre <swrup@protonmail.com>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>. *)
+
 module Assets = struct
   let get path =
     let path = Fpath.to_string path in